package com.jjw.route.config;
import org.springframework.stereotype.Component;
import org.springframework.util.AntPathMatcher;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.PrintWriter;

@Component
public class LoginUserInterceptor implements HandlerInterceptor {

    public static ThreadLocal<Integer> loginUser = new ThreadLocal<>();

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
//        String uri = request.getRequestURI();
//        AntPathMatcher antPathMatcher = new AntPathMatcher();
//        boolean match = antPathMatcher.match("/", uri);
        HttpSession session = request.getSession();
        //获取登录的用户信息
        Integer uid = (Integer) session.getAttribute("uid");
        if (uid != null) {
            //把登录后用户的信息放在ThreadLocal里面进行保存
            loginUser.set(uid);
            return true;
        }
        //未登录，返回登录页面
//        response.setContentType("text/html;charset=UTF-8");
//        PrintWriter out = response.getWriter();
//        out.println("<script>alert('请先进行登录，再进行后续操作！');location.href='http://auth.gulimall.com/login.html'</script>");
        return false;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
    }
}

